My system to use the individual tubes to connect to the cooling plates ended up not working... The combined force of all the tubes bent at such a tight radius caused them to "push" the manifold out of position. Any tubing that was more flexible simply kinked when trying to bend at such a tight radius, and unfortunately there simply wasn't enough space to fit them anywhere else...
In the end, I ended up deleting to cooling system and bypassed it in the tunnel before the point where it tees off to the two packs. This also enabled me to evacuate as much coolant as possible from the upper pack, so hopefully I won't have to pull that one out anytime soon. I've put close to 100mi on the car (including about 40mi on a day where it was 90+ deg out) without any issues.
In the longer term, I might try to look into some sort of cell replacement option to retrofit into the pack, however that will be easier said than done since these packs are such a "strange" number of cells in series, and isn't divisible into equal sized modules because of that.
2017 FFE DC charging problem and solution Important!